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Journal article
Fast integration and accumulation of beneficial breeding alleles through an AB–NAMIC strategy in wheat
Plant communications, Vol.4(3), Art. 100549
2023
PMID: 36642955
Abstract
Wheat (Triticum aestivum) is among the most important staple crops to safeguard the food security of the growing world population. To bridge the gap between genebank diversity and breeding programs, we developed an advanced backcross-nested association mapping plus inter-crossed population (AB-NAMIC) by crossing three popular wheat cultivars as recurrent founders (RF) to 20 germplasm lines from mini core collection. Selective backcrossing combined with selection against un-adapted traits and extensive crossing within and between sub-populations created new opportunities to detect unknown genes besides increasing the frequency of beneficial alleles in the AB-NAMIC population. We performed phenotyping of 590 AB-NAMIC lines and a natural panel (NP) comprised of 476 cultivars for six consecutive growing seasons and genotyped these 1,066 lines with a 660K SNP array. Genome-wide association studies in both panels for plant development and yield traits demonstrated improved power to detect rare alleles and loci with medium genetic effect in AB-NAMIC. Notably, GWAS in AB-NAMIC detected the candidate gene TaSWEET6-7B (TraesCS7B03G1216700), having high homology to rice SWEET6b gene, that exerts strong effects on adaptation and yield traits. The commercial release of two derived AB-NAMIC lines attested to its direct applicability in wheat improvement. Valuable information on GWAS mapping, candidate genes and their haplotypes for breeding traits were available through WheatGAB (www.wheatgab.com). Our research provides an excellent framework for fast-tracking exploration and accumulation of beneficial alleles stored in genebanks.
Details
- Title
- Fast integration and accumulation of beneficial breeding alleles through an AB–NAMIC strategy in wheat
- Authors/Creators
- Chengzhi Jiao - Nanjing Agricultural UniversityChenyang Hao - Institute of Crop SciencesTian Li - Institute of Crop SciencesAbhishek Bohra - Centre for Crop & Food Innovation, WA State Agricultural Biotechnology Centre, Food Futures Institute, Murdoch University, West AustraliaLanfen Wang - Institute of Crop SciencesJian Hou - Institute of Crop SciencesHongxia Liu - Institute of Crop SciencesHong Liu - Institute of Crop SciencesJing Zhao - Institute of Crop SciencesYamei Wang - Institute of Crop SciencesYunchuan Liu - Institute of Crop SciencesZhiwei Wang - Institute of Crop SciencesXin Jing - Ecogenomics (Japan)Xiue Wang - Nanjing Agricultural UniversityRajeev K. Varshney - Murdoch University, Food Futures InstituteJunjie Fu - Institute of Crop SciencesXueyong Zhang - Institute of Crop Sciences
- Publication Details
- Plant communications, Vol.4(3), Art. 100549
- Publisher
- Cell Press
- Identifiers
- 991005546870307891
- Copyright
- © 2023 The Author(s).
- Murdoch Affiliation
- Food Futures Institute; State Agricultural Biotechnology Centre; Centre for Crop and Food Innovation
- Language
- English
- Resource Type
- Journal article
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- Citation topics
- 3 Agriculture, Environment & Ecology
- 3.4 Crop Science
- 3.4.96 QTL
- Web Of Science research areas
- Biochemistry & Molecular Biology
- Plant Sciences
- ESI research areas
- Plant & Animal Science